Spill proof cup



FIG. 1 is a front elevational view of a spill proof cup, showing my new design;

FIG. 2 is a rear elevational view;

FIG. 3 is an elevational view of the handle side;

FIG. 4 is an elevational view of the side opposite the handle side;

FIG. 5 is a top plan view;

FIG. 6 is a bottom plan view;

FIG. 7 is a median vertical section taken on the line 6--6 in FIG. 5, showing the removable lid lodged in place with the air vent opposite the drinking spout. 

The ornamental design for a spill proof cup, as shown and described. 